It’s important to speak about this because when you are giving information, you often have to discuss how many people did something or the success or the results of something.
Notice that they all have “of”, it’s because it’s a proportion, is saying how much of the full amount, so it’s very close to be a percentage, but it’s less precise than a percentage.
None of
A few of
Some of
Half of
A lot of
Most of
All of
0% ——————————————————— 50% —————————————————— 100%
These words are very useful when you are trying to talk about percentages, but in a less systematic way, when you are giving a general proportion of people or things, and specially when you’re talking about results.